Hybrid tea rose plant named `Ruiroug`

ABSTRACT

A new variety of hybrid tea rose plant producing bright red flowers suitable for growing under glass.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distant variety of rose plantof the hybrid tea rose class which was created by crossingundistributed, unnamed and unpatented seedlings as seed and pollenparents in De Kwakel, Holland. The varietal denomination of the newvariety is `Ruiroug`. The new variety was isolated and asexuallyreproduced by budding in De Kwakel, Holland.

SUMMARY OF THE INVENTION

Among the novel characteristics possessed by this new variety whichdistinguish it from its parents and all other varieties of which I amaware are its attractive bright red flowers of good form borne on afloriferous plant with long stems and suitable for production of cutflowers under glass. The new variety has been reproduced throughpropagation by cuttings, grafting, budding and micropropagation.

Asexual reproduction by budding of the new variety as performed in DeKwakel, Holland shows that the foregoing and other distinguishingcharacteristics come true to form and are established and transmittedthrough succeeding propagations.

BRIEF DESCRIPTION OF ILLUSTRATION

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of the new variety in different stages of developmentdepicted in color as nearly true as it is reasonably possible to makethe same in a color illustration of this character.

DESCRIPTION OF THE NEW VARIETY

The following is a detailed description of the new variety, with colorterminology in accordance with The Royal Horticultural Society ColourChart (RHSCC) and horticultural terminology in accordance with standardterminology used in UPOV-approved horticultural guideline. Theterminology used in color descriptions herein refers to plate numbers inthe aforementioned color chart. Phenotypic expression may vary dependingupon growing conditions under different climate, soil, and cultivationconditions.

Parentage: Seed and pollen parents are seedlings.

Class: Hybrid Tea.

As can be seen in the accompanying detail illustration there is shown anew shoot and green bud, 1; compound three, five and seven leafletleaves, 2, 3 and 4, respectively; a stem, 5; bud, 6; a flower, 7, aboutone-third open; a flower, 8, about one-half open; and a flower, 9, morefully open. Also shown are flower stems 10, 11 and 12, with reproductiveorgans displayed.

The following further horticultural description is based on observationsmade of specimens grown under glass in De Kwakel, Holland.

Flower

Blooming habit: Nearly continuous.

A. Bud:

(1) Size.--Medium, about 3 to 4 cm long and about 3 cm wide.

(2) Form.--Broad ovate (shape of longitudinal section just beforeseparation of sepals); urn-shaped after sepals part.

(3) Color.--As sepals divide, near 42A to 44A, 44B.

(4) Sepals.--Much longer than green bud, very foliated, upperside near138B, underside near 137C.

(5) Peduncle.--Long: Strength-erect, very strong. Color--near 147B, fewhairs or prickles, about 17 cm.

B. Bloom:

Flower.--Medium; viewed from above--irregularly rounded; viewed fromside--(a) upper part of fully opened flower, flattened convex; (b) lowerpart of fully opened flower, flat.

(1) Size.--Average size when fully expanded--about 9 cm.

(2) Borne.--Singly, one to a stem.

(3) Form.--Decorative type, somewhat flat top, spiral imbricated, petalsruffled at margin.

(4) Petalage.--Fully double, about 25, about 5 petaloids, about 2×2 cm,crinkled.

(5) Color.--After sepals part and petals unfurl, near 42A to 44B; flowercolor near 42B to 44B; petal undersurface near 45A. Zone of petalattachment near 4B to 4C. Overall tonality from a distance is attractivebright red.

(6) Peduncle.--Generally smooth.

(7) Fragrance.--Weak.

(8) Length of stem*.--About 85 cm.

(9) Production*.--About 165/m² /yr.

Petals:

(1) Texture.--Crisp.

(2) Appearance.--Inside velvety and outside satiny.

(3) Form and size.--Broad, medium to strong undulation of margin.

(4) Arrangement.--Regularly arranged, imbricated.

(5) Petaloids.--Several, about 5.

(6) Lasting quality.--Long-lasting quality on plant and after cutting;Vase life is about 15 days. Blooms on plant last for about 20 days. Whentemperature is low, sometimes there is difficulty in flower opening.

Reproductive Organs

A. Stamens, filaments and anthers:

Arrangement and color.--Regularly arranged around styles; color offilaments--pink.

B. Pollen:

Color.--Yellow.

C. Styles: Long, stigma above mouth of receptacle, pale yellow.

D. Stigmas: Yellow, positioned below anthers.

E. Hip: Funnel-shaped; small seed vessel at petal fall but very fewseeds set.

Plant

A. Form: Narrow bushy, average disease resistance.

B. Growth: Vigorous, about 2 m in height, about 0.6 m in width.

C. Foliage: Compound 3, 5 and 7 leaflets.

(1) Size.--Medium width and length, about 14 to 16 cm in length.

(2) Quantity.--Abundant.

(3) Color.--Juvenile foliage--bronze to reddish brown; near 183A; weakto medium anthocyanin coloration, (shoot about 20 cm long); mature leafcolor--near 147A, upperside near 137A, underside near 137C.

(4) Shape.--Broad oval.

(5) Texture.--Upper side is medium glossy; underside is matte.

(6) Edge.--Serrate.

(7) Serration.--Ordinary, acuminate apices.

(8) Leaf stem.--Color--near 147A to 147B.

(9) Stipules.--Short, simple, medium green, distinct auricle.

(10) Leaflets.--Cross section--slight concave: medium undulation ofmargin; terminal leaflet--long and broad; blade about 6 to 7 cm long and4 to 5 cm wide, rounded base.

D. Wood:

(1) New wood.--Color--near 146 B to 146 C; young shoots have weak tomedium anthocyanin; coloration--bronze red purple to reddish brown.

(2) Old wood.--Color--near 147B to 147C.

E. Prickles (thorns):

(1) Prickles.--Present; quantity (main stalk)--ordinary; shape of lowerside--concave; Length--short prickles few, long prickles, medium;Color--near 180B; Position--irregular.

F. Disease resistance: Average resistance to powdery and downey mildew.

What is claimed is:
 1. A new and distinct rose plant of the hybrid tearose class, substantially as shown and described.